cgit/filters/email-libravatar-hover.lua
2024-11-25 10:05:37 +01:00

26 lines
736 B
Lua

local digest = require("openssl.digest")
function md5_hex(input)
local b = digest.new("md5"):final(input)
local x = ""
for i = 1, #b do
x = x .. string.format("%.2x", string.byte(b, i))
end
return x
end
function filter_open(email, page)
buffer = ""
hexdigest = md5_hex(email:sub(2, -2):lower())
end
function filter_close()
baseurl = os.getenv("HTTPS") and "https://seccdn.libravatar.org/" or "http://cdn.libravatar.org/"
html("<span class='libravatar'><img class='inline' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=13&amp;d=retro' /><img class='onhover' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=128&amp;d=retro' /></span>" .. buffer)
return 0
end
function filter_write(str)
buffer = buffer .. str
end